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Lens review

Olympus M.Zuiko Digital 45 mm f/1.8

7 September 2011
Szymon Starczewski

8. Vignetting

As you see in the thumbnails below, the vignetting is not a huge problem either in the JPEG files or in RAW files. In the case of the former, at the maximum relative aperture the brightness loss in frame corners amounts to 21% (-0.70 EV) so it is not bothersome. Implementing f/2.0 aperture makes the value of this aberration decrease to an almost imperceptible level of 15% (-0.46 EV). The vignetting becomes completely invisible by f/2.8 where its level we assessed as only 6% (-0.17).

In the case of RAW files, because of a slightly wider field of view, the vignetting is about 1-2% higher compared to the values given for JPEG format files.

JPEG RAW
f/1.8 f/1.8
Olympus M.Zuiko Digital 45 mm f/1.8 - Vignetting Olympus M.Zuiko Digital 45 mm f/1.8 - Vignetting
f/2.0 f/2.0
Olympus M.Zuiko Digital 45 mm f/1.8 - Vignetting Olympus M.Zuiko Digital 45 mm f/1.8 - Vignetting
f/2.8 f/2.8
Olympus M.Zuiko Digital 45 mm f/1.8 - Vignetting Olympus M.Zuiko Digital 45 mm f/1.8 - Vignetting

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Olympus M.Zuiko Digital 45 mm f/1.8 - Vignetting